/***************************************************************************/
/*                                                                         */
/*  ftspic.c                                                               */
/*                                                                         */
/*    The FreeType position independent code services for smooth module.   */
/*                                                                         */
/*  Copyright 2009, 2010 by                                                */
/*  Oran Agra and Mickey Gabel.                                            */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_INTERNAL_OBJECTS_H
#include "ftspic.h"
#include "ftsmerrs.h"

#ifdef FT_CONFIG_OPTION_PIC

/* forward declaration of PIC init functions from ftgrays.c */
void
FT_Init_Class_ft_grays_raster( FT_Raster_Funcs*  funcs );

void
ft_smooth_renderer_class_pic_free( FT_Library  library )
{
  FT_PIC_Container*  pic_container = &library->pic_container;
  FT_Memory  memory = library->memory;


  if ( pic_container->smooth )
  {
    SmoothPIC*  container = (SmoothPIC*)pic_container->smooth;


    if ( --container->ref_count )
      return;
    FT_FREE( container );
    pic_container->smooth = NULL;
  }
}


FT_Error
ft_smooth_renderer_class_pic_init( FT_Library  library )
{
  FT_PIC_Container*  pic_container = &library->pic_container;
  FT_Error           error         = Smooth_Err_Ok;
  SmoothPIC*         container;
  FT_Memory          memory        = library->memory;


  /* since this function also serve smooth_lcd and smooth_lcdv renderers,
     it implements reference counting */
  if ( pic_container->smooth )
  {
    ((SmoothPIC*)pic_container->smooth)->ref_count++;
    return error;
  }

  /* allocate pointer, clear and set global container pointer */
  if ( FT_ALLOC ( container, sizeof ( *container ) ) )
    return error;
  FT_MEM_SET( container, 0, sizeof ( *container ) );
  pic_container->smooth = container;
  container->ref_count = 1;

  /* initialize pointer table - this is how the module usually expects this data */
  FT_Init_Class_ft_grays_raster( &container->ft_grays_raster );
/*Exit:*/
  if ( error )
    ft_smooth_renderer_class_pic_free( library );
  return error;
}

/* re-route these init and free functions to the above functions */
FT_Error ft_smooth_lcd_renderer_class_pic_init( FT_Library  library )
{
  return ft_smooth_renderer_class_pic_init( library );
}

void ft_smooth_lcd_renderer_class_pic_free( FT_Library  library )
{
  ft_smooth_renderer_class_pic_free( library );
}

FT_Error ft_smooth_lcdv_renderer_class_pic_init( FT_Library  library )
{
  return ft_smooth_renderer_class_pic_init( library );
}

void ft_smooth_lcdv_renderer_class_pic_free( FT_Library  library )
{
  ft_smooth_renderer_class_pic_free( library );
}

#endif /* FT_CONFIG_OPTION_PIC */


/* END */
